Global Patent Index - EP 1944562 A4

EP 1944562 A4 20110323 - AIR CONDITIONER

Title (en)

AIR CONDITIONER

Title (de)

KLIMAANLAGE

Title (fr)

CONDITIONNEUR D'AIR

Publication

EP 1944562 A4 20110323 (EN)

Application

EP 06798039 A 20060915

Priority

  • JP 2006318376 W 20060915
  • JP 2005275493 A 20050922

Abstract (en)

[origin: EP1944562A1] In a supercooling heat exchanger of an air conditioning apparatus for exchanging heat between a high-pressure refrigerant and a low-pressure refrigerant, the refrigerants flow in opposite directions during cooling and heating. Therefore, the high-pressure refrigerant and low-pressure refrigerant flow parallel to each other in either of the operating modes, and heat exchange is less efficient. This problem is resolved by this invention. In an air conditioning apparatus having a supercooling heat exchanger (13) for exchanging heat between a low-pressure refrigerant and a high-pressure refrigerant, the supercooling heat exchanger (13) is divided into two first and second heat exchangers (13A), (13B); either the first heat exchanger (13A) or the second heat exchanger (13B) is disposed so that the high-pressure refrigerant and the low-pressure refrigerant flow countercurrent to each other; and the other heat exchanger, i.e., either the second heat exchanger (13B) or the first heat exchanger (13A), is disposed so that the high-pressure refrigerant and the low-pressure refrigerant flow parallel to each other. The heat exchangers (13A, 13B) both have a configuration in which, e.g., a high-pressure liquid refrigerant pipe (15) is wound around the external periphery of a suction pipe (14) for suctioning a low-pressure refrigerant. The heat exchangers are thereby reduced in size.

IPC 8 full level

F25B 1/00 (2006.01); F25B 13/00 (2006.01); F25B 40/00 (2006.01)

CPC (source: EP)

F25B 13/00 (2013.01); F25B 40/00 (2013.01); F28D 7/0016 (2013.01); F28D 7/106 (2013.01); F25B 2313/02741 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1944562 A1 20080716; EP 1944562 A4 20110323; EP 1944562 B1 20130417; AU 2006293191 A1 20070329; AU 2006293191 B2 20091119; CN 101268312 A 20080917; CN 101268312 B 20100519; JP 2007085647 A 20070405; JP 3982545 B2 20070926; KR 100905995 B1 20090706; KR 20080042178 A 20080514; US 2009282861 A1 20091119; WO 2007034745 A1 20070329

DOCDB simple family (application)

EP 06798039 A 20060915; AU 2006293191 A 20060915; CN 200680034279 A 20060915; JP 2005275493 A 20050922; JP 2006318376 W 20060915; KR 20087008289 A 20080404; US 6708706 A 20060915